i873«] Notices of Books: 192 



is too bulky to be held with ease. The use of a bolder type is a 

 very considerable improvement. It is unnecessary to recommend 

 the work more particularly. 



Elementary Geology. A Course of Nine Lectures. ByJ. Clifton 



Ward, F.G.S., Associate of the Royal School of Mines ; of 



Her Majesty's Geological Survey. London : Trubner and 



Co. 1872. 



Mr. Ward is already well known to the scholastic world by his 



work on Elementary Natural Philosophy. The present work is 



founded upon a similar plan, and is specially adapted for its 



proposed use by junior students and in schools. 



Notes for My Students. Magnetism. By William J. Wilson, 



F.C.S. London : J. Bale and Sons. 1872. 

 This little work is admirably adapted for the use of either the 

 advanced or elementary student. It is very clearly and concisely 

 written, and comprises much useful information. 



The Causation of Sleep. By James Cappie, M.D. Edinburgh: 



Thin. 1872. 

 Dr. Cappie, in this essay, gives many novel and ingenious sug- 

 gestions upon an interesting subject. It would be tedious to 

 detail the many original views differing in some degree from the 

 accepted opinions on a physiological subject. We recommend 

 our readers to examine for themselves these arguments, which 

 are clearly and logically stated in a sufficiently agreeable form. 



VOL. III. (n.S.) 



